import type { Request } from "express";
import type { PaywallConfig, PaywallProvider } from "@x402/core/server";
import type { TollgateConfig } from "./config.js";
/** Minimal payment-required shape accepted by `@x402/paywall` generateHtml. */
export type PaywallPaymentRequired = {
    x402Version: number;
    error?: string;
    resource?: {
        url: string;
        description?: string;
        mimeType?: string;
        [key: string]: unknown;
    };
    accepts: Array<Record<string, unknown>>;
    extensions?: Record<string, unknown>;
};
/** Free path for Coinbase Onramp session tokens (server CDP credentials only). */
export declare const SESSION_TOKEN_PATH = "/x402/session-token";
/**
 * Marker inside `@x402/paywall` EVM bundle (v2.24) WagmiProvider setup.
 * Stock connectors: injected (`Sm`) + Coinbase Wallet / Smart Wallet (`l8`).
 */
export declare const PAYWALL_CONNECTORS_MARKER = "connectors:[Sm(),l8({appName:window.x402.appName||\"x402 Paywall\"})]";
/**
 * PaywallConfig extended with buyer-facing CDP client key (public), Onramp
 * session-token endpoint, and WalletConnect project id.
 */
export type TollgatePaywallConfig = PaywallConfig & {
    /** Public CDP client / project API key for browser Smart Wallet UX. */
    cdpClientKey?: string;
    /** POST endpoint that mints Onramp session tokens (never expose secrets). */
    sessionTokenEndpoint?: string;
    /** WalletConnect Cloud project id (public). */
    walletConnectProjectId?: string;
    /** When true, register `@x402/paywall` SVM handler (Solana accepts). */
    enableSvm?: boolean;
};
export declare function isBrowserPaymentRequest(req: Pick<Request, "headers"> | {
    getHeader?(name: string): string | undefined;
}): boolean;
export declare function buildPaywallConfig(config: TollgateConfig): TollgatePaywallConfig;
/**
 * Official `@x402/paywall` provider + thin multi-wallet / Onramp injection.
 * Primary CTA: Coinbase Smart Wallet (Passkey). Also: MetaMask, injected, WalletConnect.
 * SVM paywall registered only when `paywallSvm` / Solana accepts are enabled.
 */
export declare function createTollgatePaywall(config: TollgateConfig): PaywallProvider;
/**
 * Expand stock wagmi connectors so the "Select a wallet" dropdown lists:
 * MetaMask (injected target), Injected, Coinbase Smart Wallet (Passkey-capable),
 * plus optional WalletConnect via `window.x402.extraConnectors`.
 */
export declare function patchPaywallConnectors(html: string): string;
/**
 * Inject public buyer config + optional Onramp + WalletConnect loader + secondary CTA copy.
 */
export declare function injectBuyerExtras(html: string, config: TollgatePaywallConfig): string;
/**
 * Thin chain + asset picker when paymentRequired.accepts.length > 1.
 * Stock `@x402/paywall` always signs accepts[0] — we reorder before React mounts
 * (sessionStorage + optional reload) so the selected entry drives the signature.
 */
export declare function acceptPickerHtml(): string;